Inking apparatus for printing-presses



(No Model.) 2 Sheets-Sheet 1. W. SCOTT.

INKING APPARATUS POR PRINTING PRESSES.

No. 393,179. Patented Nov. 20, 1888...

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(No Model.)` I 2 Sheets-Sheet 2.

W. SCOTT. INKING APPARATUS POR PRINTING PRESSES. No. 893,179. Patented Nov. 20, 1888.

FFICEQ VALTER SCOTT, OF PLAINFIELD, NEV JERSEY.

INKING APPARATUS FOR PRINTING-PRESSES.

SPECIFICATION forming part of Letters Patent N'o. 393,179, dated November 20, 1888.

(No model.)

To @ZZ whom, it may concern:

Be it known that I, WALTER SCOTT, oi' Plainfield, in the county of Union and State of New Jersey, have invented an Improve ment in Inking Apparatus for Printing Presses, of which the following is a specification.

This invention relates to that class of printing-presses in which the types are upon a reeiprocating bed and the impression is given by a cylinder.

My present improvement relates especially to the device for actuating the vibrating distributer-rollers that spread the ink longitudinally upon the composition rollers, and to the combination of vibrating distributer and cornposition rollers hereinafter described.

In the drawings, Figure l is an elevation at one side frame of the ink-roller stand. Fig. 2 is a plan representing aportion of the inkingrollers and frames at the respective ends of the rollers. Fig. 3 is an elevation of the gears, frame or stand, and part of the typebcd and rollers.

The reciprocating type-bed A is of any ordinary character, and the main frames B support the stands or frames C for the ink-rollers and ink-trough D. lThe composition rollers E, for inking the types, are supported in any suitable manner. I have shown stands for the same similar to those represented in my Patent No. 388,366, dated March 23,1886.

The vibrating distributer-roller F is usually of metal, and the shaft thereof passes through the frames C, and it is parallel, so that the roll and the shaft can be slipped freely endwise, and upon said shaft is a collar, 2, and this vibrating distributer F is in contact with the two type-inking rolls E.

Upon the reciprocating bed A is a rack, G, gearing into a pinion, H, upon a short shaft, 3, that passes through one of the frames C, and is formed with a screw-thread, 4L, and there is a collar, 5, that prevents end motion to the shaft 3. Around the screw 4 is a nut, I, having an arm, 6, the end oi' which passes into the groove in thecollar 2 Vupon the shaft of the vibrating distributer F; and it is preferable to make use of a guide-pin, 7, fastened at one end to the nut I and passing through a hole in the frame C, so that this nut I may be kept in position as it is moved back and forth by the revolution of the screw-shaft 3, as the same is turned by the pinion H and the rack G, that reciprocates beneath the same. By this means the distributor F is moved endwise by the direct action of the nut I, and the motion is very positive and reliable, and it will be understood that the pinion H always remains in gear with the rack upon the reciprocating type-bed, and the parts cannot become misplaced when any of the rollers are removed for cleaning the same, because the vibrating distributer F must be in the correct position when returned to the press, even after the type-bed has been reciprocated or changed in its position during the absence of this distributer F, because when it is returned to place the collar 2 in contact with the arm of the nut I insures a proper relative position of the vibrating distributer to the other parts of the press.

In printing-presses of this character I. cmploy a fount-roll, K, and a ductor, L, that trans fers the inl: from the roll K to the second distributer, M, and there is an intermediate com position roller, N, above and between the distributer M and the distributor F, and this composition roller N,being above and between the two distributers, rests in contact with them by gravity, and the distribution of the ink is much more uniform and perfect than in cases where the intermediate roller has been pressed up against the distributenroll.

A convenient device for giving end inotion to the distributer M is a rocker, l), upon a pivot, 12, and stand secured to the inside ol' one of the frames G, the ends of the rocker passing into the grooves of the collars 13 and let upon the shafts of the respective vibrating distributors F and M, so that when one dis tributer F is moved in one direction by the screw et the other, M, is moved in the opposite direction by the action of the rocker-I. Itis, however, necessary to gear the distributer F and the distributer M together, and for this purpose an intermediate gear, t, is made use of upon a short shaft.

The intermediate composition-roller, N, requires to be adjusted so as to remain in contact with both distributers F and M. With this object in view each forked bearing 20 for IOO the shalt 2l of this composition roller N is supported by a cylindrical stem passing through the short lever T, which is pivoted at 23 and provided with a slot for the clampingscrew 24. In adjusting the paris it is only necessary to place the` composition roller N upon the rollers F and M and bring up the forked bearings 20 against the shaft 2l, the elampingscrews 24 and 25 being 1oose,and then the two levers T will be raised or lowered to adapt them to the position necessary for holding the stems 22 and forks 20 directly against the shaft 21, and Vby clamping the screws 24 the levers Twill be held in position and by tightening the screws 25 the stems 22 will be clamped to the levers T. Thereby I am enabled to adapt the bearings oi' the composition roller N to any slight difference in the size of the said roller N and to the positions of the vibrating distributers F and M. The ink-trough fount-roll and ductor and the means for giving motion to the latter may be of any desired character, as these parts do not form any portion of my present invention.

I claim as my invention 2 5 The combination, with the composition inking-rolls E, and the ink-distributers M and F and their gear-Wheels and the intermediate pinion, R, of the pinion H and rack G, the

screw-shaft of the pinion H, the nut and col- 3o lar on the shaft of the distributer F, for moving the same endwise, and the rocker and collar for communicating an endwise movement to the distributer M from the shaft of the distributer F, and the intermediate composition 3 5 

